000171794 001__ 171794
000171794 005__ 20260603114408.0
000171794 0247_ $$2doi$$a10.1016/j.ympev.2026.108648
000171794 0248_ $$2sideral$$a149495
000171794 037__ $$aART-2026-149495
000171794 041__ $$aeng
000171794 100__ $$aCalvo-Yuste, Jorge
000171794 245__ $$aDeciphering reticulation and reproductive trait evolution in a chasmophyte lineage: a phylogenomic approach to the evolutionary patterns within Petrocoptis
000171794 260__ $$c2026
000171794 5060_ $$aAccess copy available to the general public$$fUnrestricted
000171794 5203_ $$aThe interplay between reticulate evolution and adaptive trait diversification during speciation remains a central challenge in evolutionary biology. We hypothesized that diversification in the Iberian chasmophytic genus Petrocoptis has been shaped by recurrent reticulation coupled with coordinated evolution of reproductive traits, including a strophiole-mediated seed adaptive syndrome linked to water uptake regulation in xeric cliff habitats.We analysed 63 representative populations using target enrichment of 345 nuclear loci (Angiosperms353) and 192 plastid regions. Phylogenomic relationships were inferred under concatenation and multispecies coalescent frameworks, accounting for genealogical and cytonuclear discordances, ILS and reticulate evolution. Seed and floral traits were analysed within an integrative phylogenetic comparative framework that jointly assessed evolutionary patterns, genomic variation, and climatic correlates.Cytonuclear discordance analyses and coalescent simulations rejected ILS as the unique driver of conflict. Network analyses supported at least two reticulation events, indicating ancestral hybridization. The evolution of reproductive traits displayed a framework of repeated and coordinated adaptive shifts. Floral evolution revealed multiple increases in calyx length associated with pink corollas and higher genomic heterozygosity. Seed morphology followed an ordered transition in strophiolar hair types and distinct adaptive optima: cylindrical hairs were associated with small seeds and proportionally larger strophioles, whereas claviform hairs corresponded to larger seeds with reduced relative strophioles. Strophiole traits correlated with temperature and precipitation, defining a climate-associated seed adaptive syndrome which may optimize water uptake regulation.Together, these results highlight the joint effects of reticulate genomic evolution and adaptive restructuring of reproductive traits in Petrocoptis diversification. Integrating phylogenetic networks with trait evolution provides a cohesive framework for understanding how gene flow and ecological specialization jointly drive lineage diversification in fragmented cliff systems.
000171794 536__ $$9info:eu-repo/grantAgreement/ES/AEI/RYC2023-042611-I$$9info:eu-repo/grantAgreement/ES/MCIU/FPU21-00305
000171794 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttps://creativecommons.org/licenses/by-nc/4.0/deed.es
000171794 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000171794 700__ $$aMartínez-Ortega, M.Montserrat
000171794 700__ $$aFerreras, Teresa Malvar
000171794 700__ $$0(orcid)0000-0001-5658-8411$$aViruel, Juan$$uUniversidad de Zaragoza
000171794 700__ $$aTejero, Pablo
000171794 7102_ $$15011$$2063$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Botánica
000171794 773__ $$g222 (2026), 108648 [19 pp.]$$pMol. phylogenet. evol.$$tMOLECULAR PHYLOGENETICS AND EVOLUTION$$x1055-7903
000171794 787__ $$tLos datos generados en este estudio, incluidos los conjuntos de datos procesados y los scripts de R utilizados para los análisis filogenéticos y comparativos, están disponibles públicamente en Zenodo.$$whttps://doi.org/10.5281/zenodo .18816034
000171794 8564_ $$s12220859$$uhttps://zaguan.unizar.es/record/171794/files/texto_completo.pdf$$yVersión publicada
000171794 8564_ $$s2146536$$uhttps://zaguan.unizar.es/record/171794/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000171794 909CO $$ooai:zaguan.unizar.es:171794$$particulos$$pdriver
000171794 951__ $$a2026-06-03-11:05:30
000171794 980__ $$aARTICLE